package com.wl.network.demo02;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;

/**
 * 客户端
 */
public class TcpClient {
    public static void main(String[] args) {
        Socket socket=null;
        OutputStream os=null;
        try {
            //知道服务器地址和端口
            InetAddress serverIp =  InetAddress.getByName("127.0.0.1");
            int port = 9999;
            //创建一个socket连接
            socket = new Socket(serverIp,port);
            //发送消息 IO流
            os = socket.getOutputStream();
            os.write("你好".getBytes());
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if (os!=null){
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (socket!=null){
                try {
                    socket.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }

    }
}
